Add new server modules and configurations for various services

- Introduced `default-creds` module for managing default credentials with Umami integration.
- Added `fail2ban` module for brute-force attack protection with configurable ban times.
- Created `firewall` module to enable and configure basic firewall settings.
- Implemented `gitea` module for self-hosted Git service with PostgreSQL backend.
- Developed `glance` module for a customizable dashboard with various widgets and themes.
- Added `iknowyou` module for a self-hosted password manager with production and demo environments.
- Introduced `kernel-hardening` module for enhancing kernel security settings.
- Created `mazanoke` module for a simple web application with Nginx integration.
- Added `mealie` module for a self-hosted meal planning application.
- Implemented `stirling-pdf` module for PDF generation service.
- Developed `umami` module for self-hosted analytics with secret management.
- Added `ssh` module for secure SSH configuration with user restrictions.
- Introduced `nixy` theme for a customized aesthetic experience across services.

home/programs/group/cybersecurity-packages.nix

@@ -0,0 +1,48 @@
+{
+  pkgs,
+  pkgs-stable,
+  pkgs-nur-hadi,
+}:
+(with pkgs-stable; [
+  # Web
+  dirb
+  ffuf
+  katana
+  whatweb
+
+  # Hashes
+  hashcat
+  haiti
+  hydra
+  john
+
+  # Databases
+  mariadb
+  redis
+  sqlmap
+  nosqli
+
+  # Network
+  inetutils
+  termshark # wireshark in TUI
+  dnsrecon
+  whois
+  dig
+  nmap
+  samba
+
+  # Misc
+  metasploit
+  nuclei
+  openvpn
+
+  # Secrets
+  trufflehog
+
+  # Forensics
+  binwalk
+])
+++ (with pkgs-nur-hadi; [
+  spilltea
+  jwt-tui
+])